Surface Movement and Deformation Simulated by Verhulst Model
The surface subsidence caused by underground coal seam mining is a time and space process and the development and change process of surface movement and deformation caused by mining subsidence is in accordance with biological growth law, this paper uses the characteristics of Verhulst model to carry out various processing of a few initial data to establish a grey differential equation model, obtains the time response model of surface movement and then uses the advantages of computer, such as high speed, strong repeatability and high operational precision, etc, to compile programs and input necessary initial data, thereby establishing the Verhulst model of surface movement of a certain point and simulating the time process of the surface point movement, and finally re-divides surface movement and deformation stage into 4 phases according to biological growth law and uses biological growth process to simulate the time process of surface movement, which is helpful to prevent the damage of mining subsidence to surface structure, protect ground facilities and reduce the economic losses caused by mining subsidence.
surface movement and deformation Verhulst model mining damage
ZHAO Zhong-ming CHEN Xi-en
School of Energy Science and Engineering HeNan Polytechnic University Jiaozuo 454000, China
国际会议
北京
英文
2407-2409
2009-08-08（万方平台首次上网日期，不代表论文的发表时间）